Earlier on Thursday, July 17, a massive earthquake of 7.3 magnitude had struck Alaska. Its depth was found to be around 36 km below the surface. Read on:

A major earthquake with a preliminary magnitude of 7.3 initially triggered a tsunami warning for the southern Alaska Peninsula. It was later downgraded to an advisory.

Wednesday’s magnitude 7.3 earthquake off Alaska's Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years — including one that shook communities almost exactly two years earlier.